/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package fr.uha.ensisa.kfetmanager.product;

import fr.uha.ensisa.kfetmanager.customer.Customer;
import fr.uha.ensisa.kfetmanager.customer.CustomerManagerRemote;
import java.io.IOException;
import java.util.Scanner;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author koboneil
 */
public class PayProducts extends HttpServlet {

    @EJB
    private CustomerManagerRemote customerManager;
    @EJB
    private ProductManagerRemote productManager;

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException {
	response.sendRedirect("index.jsp");
	return;
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException {
	processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException {
	String idString = request.getParameter("customerId");
	String productList = request.getParameter("productsList");
	String quantity = request.getParameter("quantity");

	Long id;
	Customer c;

	try {
	    id = Long.valueOf(idString);
	}
	catch(Exception e) {
	    response.sendError(response.SC_BAD_REQUEST);
	    return;
	}

	try {
	    c = this.customerManager.getCustomer(id);
	}
	catch(Exception e) {
	    response.sendError(response.SC_INTERNAL_SERVER_ERROR, "Erreur lors de la recherche de clients");
	    return;
	}

	Scanner productScanner = new Scanner(productList);
	Scanner quantityScanner = new Scanner(quantity);

	while(productScanner.hasNextLong()) {
	    try {
		Long l = productScanner.nextLong();
		Product p = this.productManager.getProduct(l);
		int q = quantityScanner.nextInt();
		
		c = this.customerManager.buyProduct(c, p, q);
	    }
	    catch(Exception ex) {
		ex.printStackTrace();
	    }
	}

	response.setContentType("text/plain;charset=UTF-8;");
	response.getWriter().print("true");
	response.getWriter().close();
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
	return "Short description";
    }// </editor-fold>
}
